<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>加载中...</title>
  <style>
    body {
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      margin: 0;
      font-family: sans-serif;
      color: #666;
    }

    .spinner {
      border: 4px solid #f3f3f3;
      border-top: 4px solid #3498db;
      border-radius: 50%;
      width: 40px;
      height: 40px;
      animation: spin 1s linear infinite;
      margin-right: 15px;
    }

    @keyframes spin {
      0% {
        transform: rotate(0deg);
      }

      100% {
        transform: rotate(360deg);
      }
    }

    .container {
      display: flex;
      align-items: center;
    }
  </style>
</head>

<body>
  <div class="container">
    <div class="spinner"></div>
    <div>正在加载页面...</div>
  </div>
</body>

</html>